CN102471721A - Hydrodynamic disc drive spindle motors having hydro bearing with lubricant including conductivity inducing agent - Google Patents

Hydrodynamic disc drive spindle motors having hydro bearing with lubricant including conductivity inducing agent Download PDF

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Publication number
CN102471721A
CN102471721A CN201080035139XA CN201080035139A CN102471721A CN 102471721 A CN102471721 A CN 102471721A CN 201080035139X A CN201080035139X A CN 201080035139XA CN 201080035139 A CN201080035139 A CN 201080035139A CN 102471721 A CN102471721 A CN 102471721A
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China
Prior art keywords
acid
straight
branched
lubricating fluid
weight
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CN201080035139XA
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Chinese (zh)
Inventor
R·U·汉
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Seagate Technology LLC
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Seagate Technology LLC
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Publication of CN102471721A publication Critical patent/CN102471721A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
    • F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/109—Lubricant compositions or properties, e.g. viscosity
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • G11B19/2018—Incorporating means for passive damping of vibration, either in the turntable, motor or mounting
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
    • C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/16—Naphthenic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/283—Esters of polyhydroxy compounds
    • C10M2207/2835—Esters of polyhydroxy compounds used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/288—Partial esters containing free carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/223—Five-membered rings containing nitrogen and carbon only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/041—Triaryl phosphates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/12—Groups 6 or 16
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/28—Anti-static
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/12—Hard disk drives or the like

Abstract

A disc drive spindle motor having hydro bearing includes a stationary member; a rotatable member which is rotatable with respect to the stationary member; and a hydro bearing interconnecting the stationary member and the rotatable member and having working surfaces separated by a lubricating fluid, wherein the lubricating fluid includes at least one synthetic ester base fluid having a viscosity index of at least 110; from 10 to 5000 ppm of at least one conductivity inducing agent; from 0.01% to 5% by weight, based on the total weight of the lubricating fluid, of at least one antioxidant; and from 0.01% to 5% by weight, based on the total weight of the lubricating fluid, of at least one antiwear additive.

Description

Have to comprise and conduct electricity the hydrokinetics disk drive axle motor of waterpower supporting member of lubricant of inductor
Right of priority
The title that the application requires to submit on August 6th, 2009 is the U.S. Provisional Application of " the hydrokinetics disk drive axle motor with waterpower supporting member of the lubricant that comprises charge transport ability " number 61/231; 833 right of priority, its disclosure is included this paper in through introducing.
Summary of the invention
The invention discloses a kind of motor, it comprises hub; Stationary parts; Turning unit, said turning unit can rotate around hub with respect to stationary parts; With the waterpower supporting member, said waterpower supporting member and said stationary parts and turning unit interconnect and have the working-surface of being separated by lubricating fluid, and wherein said lubricating fluid comprises: a) at least a synthetic ester base matter fluid, and its viscosity index is at least 110; B) at least a conduction inductor of 10-5000ppm; C) gross weight in said lubricating fluid is a benchmark, at least a inhibitor of 0.01 weight %-5 weight %; And d) gross weight in said lubricating fluid is a benchmark, at least a antiwear additive of 0.01 weight %-5 weight %.
The axle motor comprises stationary parts; With respect to the rotating turning unit of said stationary parts; Waterpower supporting member, said waterpower supporting member and said stationary parts and said turning unit interconnect and have the working-surface of being separated by lubricating fluid, and wherein said lubricating fluid comprises: synthetic ester base underflow body, and its viscosity index is at least 110; Gross weight in said lubricating fluid is a benchmark, one or more aryl sulfonic acid conduction inductors of 10-5000 ppm by weight; Gross weight in said lubricating fluid is a benchmark, at least a phenolic antioxidant, amine inhibitor or phenol and the amine inhibitor of 0.1 weight %-5 weight %; With the gross weight in said lubricating fluid be benchmark, at least a antiwear additive of 0.1 weight %-5 weight %.
The invention also discloses a kind of lubricating fluid, said lubricating fluid comprises viscosity index and is at least 110 synthetic ester base underflow body; Gross weight in said lubricating fluid is a benchmark, one or more aryl sulfonic acid conduction inductors of 50-1000 ppm by weight; Gross weight in said lubricating fluid is a benchmark, at least a phenolic antioxidant, amine inhibitor or phenol and the amine inhibitor of 0.01 weight %-5 weight %; Gross weight in said lubricating fluid is a benchmark, at least a antiwear additive of 0.01 weight %-5 weight %.
Through reading following detailed description, these feature and advantage of the present invention and various other feature and advantage will be obvious.
Brief Description Of Drawings
Can more fully understand content of the present invention through following detailed description to various embodiments and accompanying drawing, wherein:
Fig. 1 is the vertical view that comprises the disc drive data storing device of hydrokinetics with lubricating fluid or statics of fluids bolster motor.
Fig. 2 is the sectional view of hydrokinetics axle motor.
Fig. 3 is the schematic cross-section of hydrokinetics axle motor along Fig. 2 center line 3-3, for clarity sake removes some part.
Fig. 4 illustrates comparative composition and the electric conductivity of embodiment 1 disclosed two kinds of compsns under differing temps.
Fig. 5 illustrates comparative composition and the electric conductivity of embodiment 1 disclosed compsn under differing temps.
Fig. 6 illustrates the residue oily matter percentage ratio of comparative composition and embodiment 2 disclosed compsns.
Accompanying drawing is not necessarily drawn in proportion.The similar similar assembly of numeral in the accompanying drawing.But should be understood that and in specific accompanying drawing, use the numeral assembly to constitute restriction the assembly with same numerical markings in another accompanying drawing.
Detailed Description Of The Invention
In following specification sheets,, several kinds of embodiments of the present invention are described in a schematic way with reference to the series of figures of a specification sheets part.Should understand and in the scope that does not break away from scope that the present invention transfers in open or spirit, to expect other embodiment.Therefore, following detailed Description Of The Invention should not be construed as restrictive.
Except as otherwise noted, all numerals of representation feature size, quantity and the physical properties of using in this specification sheets and claims are interpreted as modifying with term " about " in all cases.Therefore, only if opposite explanation is arranged, otherwise, be approximation at the numerical parameter described in this specification sheets and the appended claims, can change according to the required character that those skilled in the art utilize instruction of the present invention to attempt to obtain.
The numerical range of use side value representation comprises all numerical value (for example 1 to 5 scope comprises 1,1.5,2,2.75,3,3.80,4,5 etc.) and the interior any range of this scope that comprises in this scope.
Used singulative " " in this specification sheets and claims, " a kind of " and " being somebody's turn to do " comprises a plurality of indicators, only if tangible phase antirepresentation is arranged in the context.In this specification sheets and claims, use a technical term usually " or " expression " and/or ", only if the tangible phase antirepresentation of Wen Zhongyou.
" comprise " or similar terms referred to include but not limited to like " comprising ", promptly comprise but not exclusive.
The term that uses among this paper " synthetic ester " expression is adapted at the middle any ester cpds that uses of substrate fluid (also being expressed as functional fluid or working fluid in this area) of lubricant.
Unified any He all synthetic esters that use in the preparation lubricating fluid that are illustrated in of the term that uses among this paper " synthetic ester base matter fluid ".Therefore, single synthetic ester can be represented in this term, or the combination of two kinds or more kinds of synthetic esters, and this synthetic ester component that depends on lubricating fluid constitutes still constituting by two kinds or more kinds of synthetic esters by single ester.
The term that uses among this paper " viscosity index " or " VI " are meant the artificial index that produces, and the kinetic viscosity of substrate fluid changes under the temperature that expression AIAE American institute of automobile engineers (Society of Automotive Engineers) (SAE) is set.Except as otherwise noted, the reference temperature of selection is 100 Fahrenheit degrees (F) (40 ℃) and 210 Fahrenheit degrees (100 ℃).
Unless otherwise specified, term " hydrocarbon " expression is by the part that carbon and Wasserstoffatoms constitute, and can be straight or branched and can be one or more cyclic groups, perhaps can comprise one or more cyclic groups.Usually (only if specifying in addition), alkyl can be saturated, and part is unsaturated or aromatics, and can comprise saturated, part is unsaturated or the inferior part (sub-moiety) of aromatics.Usually (only if specifying in addition); Saturated straight chain hydrocarbon part or inferior part are also referred to as " alkyl "; Can have 1 to about 20 carbon atoms, and saturated branched-chain hydrocarbon part or inferior part are also referred to as " alkyl ", saturated or unsaturated cyclic hydrocarbon part of part or inferior part also are called " naphthenic base (cyclically) " and " cycloalkenyl group " respectively; Unsaturated straight or branched hydrocarbon part of part or inferior part are also referred to as " thiazolinyl " or " alkynyl ", can have about 3-20 carbon atom.Under normal conditions, only if specify in addition, aromatic hydrocarbon part or inferior part are also referred to as " aryl ", can have about 6-18 carbon atom, i.e. 6,10,14 or 18 carbon atoms.
The hydrokinetics or the statics of fluids bolster motor that comprise lubricating fluid compsn disclosed by the invention are applicable to disk drive.Fig. 1 is the vertical view of typical disk drive 10.Disc driver 10 comprises packaging base 12 and top cover 14.The packaging base 12 formation sealed environment that combines with top cover 14 does not receive the pollution of the outer multiple factor of sealed environment with the protection intraware.
Disk drive 10 also comprises DPU disk pack unit 16, and DPU disk pack unit 16 is installed on the motor (not shown) through disk clamp 18 and rotates.DPU disk pack unit 16 comprises a plurality of being arranged to around the independent disk of the common rotation of hub.Each magnetic disk surface has to be installed in and is used for the joint head (associated head) 20 of communicating by letter with magnetic disk surface on the disc driver 10.In the embodiment shown in fig. 1,20 are supported by flexible portion 22, and flexible portion 22 is being attached on the hold-down arm 24 of actuator body 26.Actuator shown in Figure 1 is the portable coil actuator of the rotation of known type, comprises voice coil motor (VCM), is typically expressed as 28.Its connecting joint 20 of voice coil motor 28 usefulness makes actuator body 26 around pivot 30 rotations, makes 20 to be positioned at along on the desired data track of bow-shaped route 31.Although what show among Fig. 1 is revolving actuator, said axle motor also can be applied to comprise in the disc driver of other type actuator such as linear actuators.
Fig. 2 is the sectional view of hydrokinetics bolster motor 32.Axle motor 32 comprises stationary parts 34, hub shape part (hub) 36 and stator 38.In embodiment shown in Figure 2, stationary parts is to fix and be attached in the bar on the pedestal 12 through nut 40 and packing ring 42.Hub shape part 36 interconnects through hydrokinetics supporting member 37 with bar 34, around bar 34 rotations.Supporting member 37 comprises radially working- surface 44 and 46 and axial working-surface 48 and 50.Bar 34 comprises fluid port 54,56 and 58, and said fluid port supply lubricating fluid 60 also promotes the working-surface circulation of fluid along supporting member.Lubricating fluid 60 is supplied to bar 34 through the fluid source (not shown), and said fluid source connects with the inside of bar 34 in known manner.
Axle motor 32 also comprises extension supporting member 45, extends the axial working- surface 48 and 50 that supporting member 45 forms hydrokinetics supporting members 37.Counter plate 62 supporting working-surfaces 48 are positioned in the motor 32 with axial stability that the hydrokinetics supporting member is provided and with hub shape part 36.0-ring 64 fluid-encapsulated kinetics supporting members are set between plate 62 and the hub shape part 36 over there.Sealing prevents that hydrodynamic flow 60 from overflowing between counter plate 62 and hub shape part 36.
Hub shape part 36 comprises center core 65 and disk carriers parts 66, and disk carriers parts 66 supporting disk assemblies 16 (shown in Fig. 1) are around bar 34 rotations.DPU disk pack unit 16 is fixed on the disk carriers parts 66 through disk clamp 18 (also shown in Fig. 1).On the external diameter of permanent magnet 70 attached to hub shape part 36, as the rotor of axle motor 32.Core body 65 is formed by magneticsubstance, as the back iron (back-iron) of magnet 70.Rotor magnet 70 can be shaped as whole cyclic rings, perhaps can be formed by the spaced independent magnet of a plurality of peripheries along hub shape part 36.Rotor magnet 70 magnetization form one or more magnetic poles.
Stator 38 is attached on the pedestal 12, and comprises stator lasmination parts 72 and stator winding (stator winding) 74.Stator winding 74 is attached to lamination parts 72.Stator winding 74 separates with rotor magnet 70 diametrically, so that rotor magnet 70 rotates around hub 80 with hub shape part 36.Stator 38 is attached on the pedestal 12 through currently known methods such as one or more C clamp tool 76, and C clamp tool 76 is fixed on the pedestal through bolt 78.
The commutating pulse that is applied to stator winding 74 produces rotatingfield, and rotatingfield is communicated with rotor magnet 70 and makes hub shape part 36 rotate around the hub 80 on the supporting member 37.Said commutating pulse is periodic, selectivity polar DC impulse of current, guides the stator winding of selecting successively to drive rotor magnet and control its speed.
In embodiment shown in Figure 2, axle motor 32 is " following hub shape part " type motors, and wherein the axial location of stator 38 is lower than hub shape part 36.Stator 38 also has the radial position that is positioned at hub shape part 36 outsides, and stator winding 74 is fixed on the inner diameter surface 82 (Fig. 3) of lamination parts 72 like this.In another embodiment, stator is arranged in hub shape part, rather than is lower than hub shape part.Stator can have the radial position that is positioned at hub shape part inside or hub shape part outside.In addition, the axle motor can have the bar of fixed bar (as shown in Figure 2) or rotation.In revolving bar axle motor, said supporting member said revolving bar and and the coaxial external stability sleeve of said revolving bar between.
Fig. 3 is hydrokinetics axle motor 32 schematic cross-sections along Fig. 2 center line 3--3, for clarity sake removes some part.Stator 38 comprises lamination parts 72 and stator winding 74, and they are coaxial with rotor magnet 70 and center core 65.Stator winding 74 comprises phase winding W1, V1, U1, W2, V2 and U2, and they twine around the tooth in the lamination parts 72.Phase winding is formed by coil, and the coil axes of said coil intersects perpendicular to hub 80 and with hub 80.For example, the coil axes 83 of phase winding W1 is perpendicular to hub 80.The radially working-surface 44 of hydrokinetics supporting member 37 and 46 is formed by the external diameter surface of bar 34 and the inside diameter surface of center core 65.Radially working- surface 44 and 46 lubricated fluids 60 are separated, and said lubricating fluid 60 keeps spacing (clearance) c in normal running.
Synthetic ester base matter fluid
Synthetic ester base matter fluid in the proper lubrication fluid comprises all esters of the base oil that is suitable as lubricated purpose in principle.Synthetic ester base matter fluid can comprise the combination of single synthetic ester or one or more same-types or dissimilar synthetic ester.
In some embodiments, suitable synthetic ester base matter fluid can comprise the ester of monohydroxy-alcohol and monocarboxylic acid; Diester and polyester are like the diester and the polyester of glycol or polyvalent alcohol and identical or different monocarboxylic acid; Identical or different monohydroxy-alcohol and identical or different dicarboxylicacid or the diester and the polyester of polycarboxylic acid; And the polyester of identical or different divalent alcohol or polyvalent alcohol and identical or different di-carboxylic acid or polycarboxylic acid.
In some embodiments, the viscosity index of said substrate fluid is at least 110.In some embodiments, can use synthetic ester base underflow body with high VI.For example, for dicarboxylic diester and polyol ester, the common scope of VI is respectively about 115-200, or 120-200.
Comprise one or more at said ester and be derived from the segmental embodiment of monohydroxy-alcohol, said monohydroxy-alcohol can be that (for example, chemical formula is (C to saturated fatty alcohol nH 2n+1) OH).In some embodiments, this alcohol can have about 3-20 carbon atom.The hydrocarbon part of said alcohol can be saturated, and can be straight or branched.Said alcohol can form or comprise one or more saturated alicyclic parts.Exemplary saturated fatty alcohol can comprise 1-propyl alcohol, 1-butanols, 1-amylalcohol, 1-hexanol, 1-enanthol, 1-eight alkanols (octanol), 1-nine alkanols (nonyl alcohol), 1-ten alkanols (decyl alcohol), 1-hendecanol, 1-dodecanol (lauryl alcohol), 1-tridecyl alcohol, 1-tetradecanol (tetradecyl alcohol), 1-pentadecylic alcohol, 1-cetyl alcohol (Tego Alkanol 16), 1-heptadecanol etc.; And branched chain isomer; Hydroxyl is positioned at 2-or 3-position in said branched chain isomer, and/or in said branched chain isomer, has one or two methyl and/or ethyl branch on the hydrocarbon chain.The illustrative embodiments of this branched aliphatic alcohol comprises having terminal portions CH (CH 3) 2Different-shape (iso-form) and comprise C-C (CH 3) 2New-the shape (neo-form) of-C part.Same suitable is monohydroxy-alcohol, for example can be by general formula R-O-(Z 1-O-) xThe polyoxyalkylene ether that H representes, wherein
R representes straight chain hydrocarbon, branched-chain hydrocarbon or clicyclic hydrocarbon, and can comprise alicyclic ring fragment or substituting group,
X is an integer, the integer of 1-5 for example, and
Z 1Represent identical or different C 2-C 4-alkylidene group, for example ethylene, propylene, trimethylene, 1,2-butylidene, 2,3-butylidene, 1,3-butylidene, tetramethylene etc.
In addition, (Z 1-O) xGroup can be represented by one or two oxygen annular atoms and 3,4 or 5 five-ring or six-rings that carboatomic ring atom forms.For situation about comprising more than a kind of ester of the part that is derived from monohydroxy-alcohol, corresponding alcohol moiety can be identical or different.
When said ester comprises one or more parts that are derived from divalent alcohol and polyvalent alcohol, can use synthetic ester, divalent alcohol or polyvalent alcohol are saturated fatty alcohol [for example, chemical formula (C in the said synthetic ester nH 2n-x) (C (=O) OH) 2+xIn, be 0 for the situation x of glycol,, x>=1, for example 1,2 or 3 for the situation of polyvalent alcohol], particularly have the radical of saturated aliphatic alcohol of about 3-20 carbon atom.In some embodiments, divalent alcohol is not connected on the identical carbon atom with hydroxyl in the polyvalent alcohol.Said divalent alcohol and polyvalent alcohol can be straight chain or side chain, can form or comprise one or more saturated alicyclic radicals.The illustrative example of saturated aliphatic diol comprises 1, ammediol, 1,4-butyleneglycol, 1,5-pentanediol, 1; 6-pinakon, 1,7-heptanediol, 1,8-ethohexadiol, 1; 9-nonanediol, decamethylene-glycol, 1,11-undecane glycol, 1; 12-dodecanediol, 1,13-tridecane glycol, 1,14-tetradecane glycol, 1; 15-pentadecane glycol, 1,16-n-Hexadecane glycol, 1,17-heptadecane glycol etc.; With and branched chain isomer, one or two hydroxyl links to each other with the non-terminal carbon of alkylidene chain in the said branched chain isomer, and/or has methyl and/or the ethyl branch on one or two optional position that is connected said alkylidene chain on the said alkylidene chain.Same suitable be glycol, as by chemical formula H-O-(Z 1-O-) xThe polyoxyalkylene diols that H representes, wherein x is an integer, the integer of 1-5 for example, Z 1Represent identical or different C 2-C 4-alkylidene group is like ethylene, propylene, trimethylene, 1,2-butylidene, 2,3-butylidene, 1,3-butylidene, tetramethylene etc.In addition, (Z 1-O) xGroup can be represented by one or two oxygen annular atoms and 3,4 or 5 five-ring or six-rings that carboatomic ring atom forms.The illustrative example of radical of saturated aliphatic polyvalent alcohol comprises for example glycerine, TriMethylolPropane(TMP) and tetramethylolmethane.For situation about comprising more than a kind of ester of the part (moiety) that is derived from divalent alcohol or polyvalent alcohol, corresponding part can be identical or different.
When said ester comprises one or more and is derived from monocarboxylic part, can preferably use so synthetic ester, wherein said monocarboxylic acid is that [for example, chemical formula is (C to saturated lipid acid nH 2+1C) C (=O) OH], particularly have the lipid acid of about 3-20 carbon atom.The hydrocarbon of this acid part can be saturated, and can be straight chain or side chain, can form or comprise one or more saturated fat cyclic groups.Representational sfas comprises propionic acid, butyric acid, five alkanoic acids (valeric acid), six alkanoic acids (caproic acid), seven alkanoic acids (enanthic acid), eight alkanoic acids (sad), nine alkanoic acids (nonyl alcohol), ten alkanoic acids (capric acid), 1-undecanoic acid, dodecylic acid (LAURIC ACID 99 MIN), tridecanoic acid, tetradecanoic acid (tetradecanoic acid), pentadecylic acid, hexadecanoic acid (palmitinic acid), margaric acid, octadecanoic acid (Triple Pressed Stearic Acid) and arachic acid (eicosanoic acid); And branched chain isomer; Carboxyl is positioned at 2-or 3-position in the said branched chain isomer, and/or said hydrocarbon is partly with one or two methyl and/or ethyl branch.The representative side chain aliphatic carboxylic acid of example comprises having terminal portions CH (CH 3) 2Different-shape (iso-form) and comprise C-C (CH 3) 2New-the shape (neo-form) of-C part.For comprising the situation that is derived from the ester of monocarboxylic part more than a kind of, corresponding acid moieties can be identical or different.
When said ester comprises one or more parts that are derived from di-carboxylic acid and polycarboxylic acid, can use the synthetic ester with following characteristic: di-carboxylic acid or polycarboxylic acid are sfas [for example, chemical formula (C in the said synthetic ester nH 2n-x) (C (=O) OH) 2+xIn, be 0 for the situation x of di-carboxylic acid, for the situation of polycarboxylic acid, x>=1 for example is 1,2 or 3], for example those have the sfas of about 3-20 carbon atom.Said di-carboxylic acid and polycarboxylic acid can have straight or branched hydrocarbon part, and can form or comprise saturated alicyclic moiety.The illustrative example of saturated fatty dicarboxylicacid comprises 1,3-propanedioic acid (propanedioic acid), 1,4-Succinic Acid (succsinic acid), 1,5-pentanedioic acid (glue acid), 1; 6-hexanodioic acid (adipic acid), 1,7-pimelic acid (jambulol), 1,8-suberic acid (cork acid), 1; 9-nonane diacid (lepargylic acid), 1,10-sebacic acid (sebacic acid), 1,11-undecane diacid, 1; 12-dodecanedioic acid, 1,13-undecane dicarboxylic acid, 1,14-tetradecane diacid, 1; 15-pentadecane diacid, 1,16-Thapsic acid, 1,17-pentadecane dicarboxylic acid etc.; And branched chain isomer, one or two carboxyl links to each other with the non-terminal carbon of alkylidene chain in the said branched chain isomer, and/or said alkylidene chain has methyl and/or ethyl branch on one or two optional position that is connected said alkylidene chain.Saturated aliphatic polycarboxylic acid's illustrative example comprises for example careless propanedioic acid (oxalmalonic acid), tricarballylic acid (carballylic acid) etc.For situation about comprising more than a kind of ester of the part that is derived from di-carboxylic acid or polycarboxylic acid, corresponding part can be identical or different.
In some embodiments, synthetic ester base underflow body comprises at least a synthetic ester, and said synthetic ester is selected from dicarboxylic diester and the full ester of glycol (full esters of diols).
In some embodiments, said synthetic ester base underflow body can comprise the ester of one or more formulas (I)
Figure BPA00001503218200071
Wherein, R 1And R 2Identical or different, represent straight chain C separately 3-C 17-alkyl, it randomly has and is connected the C on the secondary carbon(atom) in this chain 1-C 3-alkyl branches; Z is a straight chain C 3-C 10-alkylidene group, it randomly has and is connected the C on the carbon atom in this chain 1-C 3-alkyl branches.
In some embodiments, can comprise in the ester of formula (I) expression amounting to about 15-35, about 15-33, about 18-30 or about 18-28 carbon atom that above-mentioned carbonatoms is to comprise R 1And R 2Long linear moieties in all carbon atoms in the straight-chain alkyl-sub-part of all carbon atoms of existing and Z, do not comprise any carbon atom in the side chain.Observe part Z, this representes by formula-(CH 2) 2-CH (CH 3)-(CH 2) 25 carbon atoms of partial contribution of-expression are by formula-CH 2-CH (CH 2CH 3)-CH 2The part of-expression is designated as 3 carbon atoms.Correspondingly, only as an example, R wherein 1And R 2Respectively do for oneself n-heptyl and Z comprises total (7+7+5)=19 carbon atom, R in the linear fraction of the compound of pentamethylene (I) 1And R 2The 2-octyl group of respectively doing for oneself (is H 3C-(CH 2) 5-CH (CH 3)-) and Z are the 3-methyl isophthalic acids, and the 5-pentylidene (promptly-(CH 2) 2-CH (CH 3)-(CH 2) 2-) the linear fraction of compound (I) also comprise total (7+7+5)=19 carbon atom.
In some embodiments, R 1And R 2Comprise the straight chain hydrocarbon part with about 6-14 carbon atom separately, this straight chain hydrocarbon part randomly has methyl, ethyl, propyl group or sec.-propyl side chain, and said side chain is positioned at and makes R 1Or R 2Long linear hydrocarbon be no more than the position of about 14 carbon atoms.
In another embodiment, R 1And R 2Comprise the straight chain hydrocarbon part with about 6-14 carbon atom separately, this straight chain hydrocarbon part randomly has methyl or ethyl branch, and said side chain is positioned at and makes R 1Or the long linear hydrocarbon of R is no more than the position of about 14 carbon atoms.
In some embodiments, R 1, R 2With all side chains that exist among the Z add up to 0,1 or 2.According to this embodiment, if Z representes to have the part of 2 side chains, R 1And R 2Represent straight-chain alkyl separately.Correspondingly, if Z representes to have the part of 1 side chain, hydrocarbon R-and R 2In a kind ofly can have side chain, perhaps a R 1And R 2Represent straight-chain alkyl separately.Similarly, if Z representes not contain the part of side chain, hydrocarbon R 1And R 2In a kind ofly can have two side chains, perhaps hydrocarbon R 1And R 2In one or both can have side chain, perhaps a R 1And R 2Represent straight-chain alkyl separately.In some embodiments, Z is partly with 0 or 1 side chain.In some embodiments, R 1And R 2Each straight chain hydrocarbon that freely has about 6-14 carbon atom partly constitutes.In some embodiments, R in the ester of formula (I) 1And R 2Can be identical.In some embodiments, said synthetic ester base underflow body comprises at least a ester by formula (I) expression, wherein R 1And R 2Be another n-C independently 6-C 12-alkyl, Z are new pentylidene (CH 2-C (CH 3) 2-CH 2-), pentamethylene ((CH 2) 5-) or the 3-methyl isophthalic acid, 5-pentylidene ((CH 2) 2-CH (CH 3)-(CH 2) 2-).In some embodiments, said synthetic ester base underflow body comprises at least two kinds of different synthetic esters.In some embodiments, said synthetic ester base underflow body comprises at least two kinds of different synthetic esters and the synthetic ester of at least a formula (I).In some embodiments; Said synthetic ester base underflow body comprises the synthetic ester that is selected from down group: 3-methyl isophthalic acid, 5-pentanediol two (just-capronate), 3-methyl isophthalic acid, 5-pentanediol two (just-heptanoate), 3-methyl isophthalic acid; 5-pentanediol two (just-octanoate), 3-methyl isophthalic acid; 5-pentanediol two (just-pelargonic esternonate), 3-methyl isophthalic acid, 5-pentanediol two (just-decylate), 3-methyl isophthalic acid, 5-pentanediol two (just-undecane acid esters), 3-methyl isophthalic acid; 5-pentanediol two (just-dodecylate) and the 3-methyl isophthalic acid, 5-pentanediol two (just-tridecanoate) and combination.
In some embodiments, said synthetic ester base underflow body comprises at least a synthetic ester that is selected from down group: by the 3-methyl isophthalic acid, and two ester mixtures of 5-LUTARALDEHYDE and n-caproic acid and positive enanthic acid preparation; By the 3-methyl isophthalic acid, two ester mixtures of 5-pentanediol and n-caproic acid and n-caprylic acid preparation; By the 3-methyl isophthalic acid, two ester mixtures of 5-pentanediol and n-caproic acid and pelargonic acid preparation; By the 3-methyl isophthalic acid, two ester mixtures of 5-pentanediol and n-caproic acid and n-capric acid preparation; By the 3-methyl isophthalic acid, two ester mixtures of 5-pentanediol and positive enanthic acid and n-caprylic acid preparation; By the 3-methyl isophthalic acid, two ester mixtures of 5-pentanediol and positive enanthic acid and pelargonic acid preparation; By the 3-methyl isophthalic acid, two ester mixtures of 5-pentanediol and positive enanthic acid and n-capric acid preparation; By the 3-methyl isophthalic acid, two ester mixtures of 5-pentanediol and n-caprylic acid and pelargonic acid preparation; By the 3-methyl isophthalic acid, two ester mixtures of 5-pentanediol and n-caprylic acid and n-capric acid preparation, the perhaps combination of two kinds or more kinds of these synthetic ester mixtures.
In some embodiments, said synthetic ester base underflow body can comprise the ester of one or more formulas (Ia) expression
Wherein, R 1And R 2Identical or different, represent straight chain C separately 3-C 17-alkyl, it randomly has and is connected the C on the secondary carbon(atom) in this chain 1-C 3-alkyl branches; Z is a straight chain C 3-C 10-alkylidene group, it randomly has and is connected the C on the carbon atom in this chain 1-C 3-alkyl branches.More specifically, formula Ia compound can have and the same character of above-mentioned formula I compound.
In some embodiments, said synthetic ester base underflow body comprises at least a synthetic ester that is selected from down group: formula (I) or ester (Ia); Above-mentioned straight chain C 5-C 12-dicarboxylicacid and (straight or branched) C 6-C 13The ester of-alcohol is like dioctyl sebacate (for example sebacic acid 2-(ethyl hexyl) ester), Octyl adipate, dioctyl azelate etc.; Above-mentioned straight chain C 5-C 12Monocarboxylic acid and C 6-C 13The ester of glycol (straight or branched) (for example 3-methyl isophthalic acid, 5-pentanediol two capronates or 3-methyl isophthalic acid, 5-pentanediol dipelargonate); Trihydroxymethylpropanyl ester; With the dimethyltrimethylene glycol ester.
The conduction inductor
Lubricating composition disclosed by the invention also comprises at least a conduction inductor.The conduction inductor also can be called static inhibitor.The conduction inductor can have conduction inducibility, static resistance, or has this two kinds of character simultaneously.The conduction inductor can comprise and can cause electroconductibility or can stop all electrostatic charges accumulated nonmetallic compounds to lubricating fluid.Nonmetal be intended to discharge all metals and metallic particles used herein, because its particle properties, said metal and metallic particles can disturb the normal function of a motor.But the compound that for example comprises metal with ionic species or form complexed is appreciated that to nonmetal.
In some embodiments, comprise and conduct electricity the lubricating fluid of inductor and can be used as the lubricating fluid of conduction, and at high temperature do not decompose.In some embodiments, disclosed lubricating fluid can anti-ly be greater than or equal to 50 ℃ temperature.In some embodiments, disclosed lubricating fluid can anti-ly be greater than or equal to 100 ℃ temperature.In some embodiments, disclosed lubricating fluid can anti-ly be greater than or equal to 120 ℃ temperature.In some embodiments, disclosed lubricating fluid can anti-ly be greater than or equal to 150 ℃ temperature.This lubricating fluid has advantage with respect to the lubricating fluid that other at high temperature decomposes.Compare with the lubricating fluid that does not contain special additive, the vaporator rate that lubricating fluid evaporates under assigned temperature in time or the variation of steam output can be represented lubricating fluid decomposition course at high temperature.
The conduction inductor can comprise for example following compound and compsn: a.) can use dialkyl group Whitfield's ointment chromium and the mixture of didecyl sulfo-succinic acid calcium in the multipolymer of lauryl methacrylate(LMA) and ethylene methacrylic yl pyridines.Concrete example comprises ASA-3 (the imperial lubricant ltd (Royal Lubricants Company, Inc.)) of New Jersey Eastern Han Dynasty Nowe.The first disassociation component of this mixture is a dialkyl group Whitfield's ointment chromium, and it can use didecyl sulfo-succinic acid calcium stableization; B.) N-tallow-1, the compsn of the polycondensation product of 3-diaminopropanes and Epicholorohydrin (3) (for example in aromatic solvent).Concrete example comprises Polyfloe 130; C.) compsn of 1-decene polysulfones and nitrous acid dicocoalkyl Dimethyl Ammonium in toluene; D.) colloidal solution of alkylsalicylate, sulphonate, the inferior acid amides of amber and other polar additive; E.) magnesium oleate, contain the calcium salt (the calcium salt of nitrate lube oil with stearic acid) of stearic nitrated lubricating oil, C in toluene 17-C 20Compsn, chromium stearate, long chain acid chromic salts, oleic acid chromium, linolic acid chromium, cobalt naphthenate (cobalt naphthenate), copper naphthenate (copper naphthenate), nickel naphthenate (nickel naphthenate), DIETHANOL AMINE, 2-picoline, pyridine, 3-picoline, the 2-amino-5-nitropyridine and 2 of-artificial fat acid chromic salts, 6-dinitrobenzene-3-chloropyridine; F.) octadecyl anthranilic acid (stearylanthranylic), the Sigbol that for example can buy, ASP-1 or Kerostat; G.) use long chain organic acid or hydrocarbon side chain to make its soluble electric polyaniline derivative (conducting polyaniline derivatives made soluble with long chain organic acid or hydrocarbon side chains); And h.) comprises the metals ion (C of soccerballene 60+nM, wherein n is 0,1 etc., M is La) maybe can carry out any metals ion of transfer transport.
In some embodiments, the conduction inductor can comprise at least a polymeric compounds.In some embodiments, the conduction inductor can comprise the polymeric compounds of at least a nitrogenous (N).In some embodiments, the conduction inductor can comprise at least a polyaniline.In some embodiments, the conduction inductor can comprise at least a polyaniline that comprises the polymerized unit that formula I representes:
Figure BPA00001503218200111
0＜x/y＜1 wherein, R a, R bAnd R cBe hydrogen or alkyl independently of one another.In addition, R cCan represent one or more halogen atoms or be connected the alkyl on the phenyl ring, cyclic group and optional aryl through oxygen or sulphur (for example, alkoxyl group and alkylthio etc.).
The alkyl character that comprises in the polyaniline of formula I polymkeric substance makes that the lipotropy of said polymkeric substance is enough to mix with said lubricating fluid.In some embodiments, it can be dissolved in the said lubricating fluid.Equally, each hydrocarbon substituent can specifically be represented a kind of in the following group: a.) can be randomly by the substituted straight or branched alkyl of one or more halogen atoms, can randomly be substituted (singly-or the many) naphthenic base of (for example being replaced) by one or more halogen atoms, alkyl, (single-or many) naphthenic base or aryl; B.) (single-or many) naphthenic base; Promptly can be monocycle or encircle more and can be randomly by one or more halogen atoms, alkyl, (single-or many) naphthenic base or substituted naphthenic base of aryl; Wherein each alkyl is replaced by one or more halogen atoms for example, naphthenic base or aryl again, each cyclic group can be again by one or more halogen atoms for example, alkyl, (single-or many) naphthenic base or aryl replacement; C.) can be monocycle or polyaromatic; Like phenyl, naphthyl and anthryl; It is randomly by one or more halogen atoms, alkyl, (single-or many) naphthenic base or aryl replacement; Wherein each alkyl can be again replaced by one or more halogen atoms, (single-or many) naphthenic base or aryl, and each cyclic group can be again replaced by one or more halogen atoms for example, alkyl, (single-or many) naphthenic base and aryl.
In some embodiments, said conduction inductor can comprise at least a sulfonic acid R a-SO 3H or its salt, wherein R aAs above definition.Suitable sulfonic acid can comprise that can transmit electric conductivity to said lubricating fluid maybe can reduce electrostatic charges accumulated all sulfonic acid and sulphonate.Usually, said alkyl has at least 6, at least 8 or at least 10 carbon atoms.In some embodiments, R in the sulfonic acid aCan be aryl, perhaps comprise at least a aryl.This aryl can contain 6-14 carbon atom.For example, phenyl, naphthyl and anthryl etc.The sulfonic acid part can directly be connected on one of them aryl carbons atom or pass through methylene radical (CH 2-) and aryl carbons atom bridge joint.In addition, aryl can have 1-3 halogen atom or hydrocarbon substituent.In some embodiments, aryl sulfonic acid can be can be randomly further by the substituted C of halogen atom 6-C 20-alkyl-C 6-C 14-aryl sulfonic acid.
The concrete illustrative example of this aryl sulfonic acid can comprise, Phenylsulfonic acid for example, and wherein phenyl ring randomly has one, two or three identical or different straight or branched C 6-C 20-alkyl is like straight or branched hexyl-Phenylsulfonic acid, straight or branched heptyl-Phenylsulfonic acid, straight or branched octyl group-Phenylsulfonic acid, straight or branched nonyl-Phenylsulfonic acid, straight or branched decyl-Phenylsulfonic acid, straight or branched undecyl-Phenylsulfonic acid, straight or branched dodecyl-Phenylsulfonic acid (or Witco 1298 Soft Acid), straight or branched tridecyl-Phenylsulfonic acid, straight or branched tetradecyl-Phenylsulfonic acid, straight or branched pentadecyl-Phenylsulfonic acid, straight or branched hexadecyl-Phenylsulfonic acid, straight or branched heptadecyl-Phenylsulfonic acid, straight or branched octadecyl-Phenylsulfonic acid, straight or branched nonadecyl-Phenylsulfonic acid, straight or branched eicosyl-Phenylsulfonic acid, straight or branched list hexyl or dihexyl-naphthene sulfonic acid, straight or branched list heptyl or diheptyl-naphthene sulfonic acid, straight or branched list octyl group or dioctyl-naphthene sulfonic acid, straight or branched list nonyl or dinonyl-naphthene sulfonic acid, straight or branched list decyl or didecyl-naphthene sulfonic acid, straight or branched list undecyl or two undecyl-naphthene sulfonic acid, straight or branched list dodecyl or two dodecyl-naphthene sulfonic acid, straight or branched list tridecyl or double tridecyl-naphthene sulfonic acid, straight or branched list tetradecyl or two tetradecyl-naphthene sulfonic acid, straight or branched list pentadecyl or two pentadecyl-naphthene sulfonic acid, straight or branched list hexadecyl or double hexadecyl-naphthene sulfonic acid, straight or branched list heptadecyl or two heptadecyl-naphthene sulfonic acid, straight or branched list octadecyl or two octadecyl-naphthene sulfonic acid, straight or branched list nonadecyl or two nonadecyl-naphthene sulfonic acid or straight or branched list eicosyl or two eicosyl-naphthene sulfonic acid.
The illustrative example of commercially available conduction inductor comprises STAT-SAFE 2500 (combinations of kerosene, o-Xylol, Witco 1298 Soft Acid and solvent naphtha (naphtha); Available from Cheshire, UK because of the special chemical company of promise Parker (Innospec Specialty Chemicals; Chelshire, UK)); EXPINN 10 (combination of heptane and Witco 1298 Soft Acid, available from Cheshire, UK because of the special chemical company of promise Parker); STADIS
Figure BPA00001503218200123
450 (dinonylnapthyl sulfonic acid; (the The Associated Octel Company Limited of associating Ao Tai ltd available from Cheshire, UK; Chelshire, UK)) and STADIS
Figure BPA00001503218200124
425 (available from the associating Ao Tai ltd of Cheshire, UK).
Lubricating fluid can comprise single combination of planting the conduction inductor of conduction inductor or two kinds or more kinds of identical or different types.The concentration of conduction inductor can have a great difference in the lubricating fluid.In some embodiments, concentration keeps relatively low so that the overall viscosity of lubricating fluid is unaffected.In some embodiments, the concentration of conduction inductor can be 10-5000ppm, 100-5000ppm, 50-1000ppm, 50-500ppm in the said lubricating fluid.In some embodiments, the resistance of disclosed lubricating fluid is less than 50M Ω.For example, the aryl sulfonic acid of 1000ppm (that is, 0.1%) can provide suitable performance in the discovery mineral based hydrocarbon.The concentration of this concentration ratio typical case ferrofluid lubricant is much lower, and the concentration of ferromagnetic particle is up to 4% in said ferrofluid lubricant.
Other additive
Said lubricating fluid can randomly comprise the additive of one or more significant quantities, like the non-metallic additive of inhibitor, corrosion inhibitor, viscosity index modifiers, pour point reducer, skimmer, metal brightener and conduction.
Suitable inhibitor comprises all compounds of the working-surface oxidation that can suppress, stop or eliminate lubricating fluid and/or said axle motor, for example amido inhibitor, phenol-based anti-oxidants, thio-2 acid two (just-dodecyl) ester, thio-2 acid two (just-octadecyl) ester and similar thiodipropionate, thiodiphenylamine and similarly sulfur-based compound etc.
In some embodiments, said lubricating fluid can comprise the combination of at least a amido inhibitor or two kinds or more kinds of amido inhibitors.Can use any amido inhibitor.In some embodiments, said amido inhibitor can be the compound of sulfur-bearing not in the molecule, has about 6-60 or about 10-40 carbon atom.In some embodiments, said amido inhibitor can be selected from the material of being made up of diarylamine, and wherein aryl can be identical or different, can be C separately 6-C 14-aryl, its randomly have one, two or three identical or different be selected from halogen atom and C 1-C 12The substituting group of-alkyl.In some embodiments, said amido inhibitor can be selected from the material of being made up of diarylamine, and wherein aryl can be identical or different, can be C separately 6-C 14-aryl, it randomly has one, two or three identical or different C 3-C 12-alkyl substituent.
Exemplary example can comprise the phenylbenzene amine; Like diphenylamine, monobutyl (comprising straight chain and side chain) diphenylamine, single amyl group (comprising straight chain and side chain) diphenylamine, single hexyl (comprising straight chain and side chain) diphenylamine, monobutyl (comprising straight chain and side chain) diphenylamine, single amyl group (comprising straight chain and side chain) diphenylamine and similar monoalkyl diphenylamine, particularly single (C 4-C 9-alkyl) (that is, in two phenyl ring is by alkyl (C particularly for diphenylamine 4-C 9-alkyl) the single replacement, i.e. monoalkyl-substituted diphenylamine); P, p '-dibutyl (comprising straight chain and side chain) diphenylamine, p, p '-diamyl (comprising straight chain and side chain) diphenylamine, p; P '-dihexyl (comprising straight chain and side chain) diphenylamine, p; P '-diheptyl (comprising straight chain and side chain) diphenylamine, p, p '-dioctyl (comprising straight chain and side chain) diphenylamine, p, p '-dinonyl (comprising straight chain and side chain) diphenylamine and similar two (alkyl phenyl) amine; P particularly, p '-two (C 4-C 9-alkyl phenyl) amine (that is, and the substituted diphenylamine of dialkyl group, wherein phenyl ring is separately by alkyl (C particularly 4-C 9-alkyl) the single replacement, and two alkyl are identical); Two (list-C 4-C 9-alkyl phenyl) amine, the alkyl on one of them phenyl ring is different with the alkyl on another phenyl ring; Two (two-C 4-C 9-alkyl phenyl) amine, wherein at least one is different with other alkyl in four alkyl on two phenyl ring; ALPHA-NAPHTHYL AMINE is like N-phenyl-1-naphthylamine, N-phenyl-2-ALPHA-NAPHTHYL AMINE, 4-octyl phenyl-1-ALPHA-NAPHTHYL AMINE, 4-octyl phenyl-2-ALPHA-NAPHTHYL AMINE etc.; Phenylene-diamines is like right-phenylenediamine, N-phenyl-N '-sec.-propyl-right-phenylenediamine, N-phenyl-N '-(1, the 3-dimethylbutyl)-right-phenylenediamine etc.In some embodiments, can use p, p '-dioctyl (comprising straight chain and side chain) diphenylamine, p, p '-dinonyl (comprising straight chain and side chain) diphenylamine and N-phenyl-1-naphthylamine.
In some embodiments, said lubricating fluid can comprise at least two kinds of dissimilar inhibitors.In some embodiments, said lubricating fluid can comprise at least a amido inhibitor and at least a other dissimilar inhibitor.In some embodiments, said lubricating fluid can comprise at least a amido inhibitor and at least a phenol-based anti-oxidants.In some embodiments, can use single phenol-based anti-oxidants or two kinds or more kinds of phenol-based anti-oxidants of planting.In some embodiments, can use any phenol-based anti-oxidants.In some embodiments, phenol-based anti-oxidants can be the compound of sulfur atom-containing not in the molecule.In some embodiments, phenol-based anti-oxidants can have about 6-100 carbon atom, or about 10-80 carbon atom.
In some embodiments, said phenol-based anti-oxidants for example can be selected from 2,6-two-tert.-butyl phenol, 2; 6-two-tertiary butyl-p-cresol, 4,4 '-methylene-bis (2,6-two-tert.-butyl phenol), 4; 4 '-butylidene-bis(3-methyl-6-t-butyl phenol), 2,2 '-methylene-bis(4-ethyl-6-t-butyl phenol), 2,2 '-methylene-bis (4-methyl-6-tert butyl phenol), 4; 4 '-isopropylidene biphenol, 2,4 dimethyl 6 tert butyl phenol, four [methylene radical-3-(3,5-two-tert-butyl-hydroxy phenyl)-propionic ester] methane, 1; 1,3-three (2-methyl-4-hydroxyl-5-tert-butyl-phenyl) butane, 1,3; 5-trimethylammonium-2,4,6-three (3; 5-two-tertiary butyl-4-hydroxy benzyl)-benzene, 2; 6-two-tertiary butyl-4-ethylphenol, two [2-(2-hydroxy-5-methyl base-3-tertiary butyl benzyl)-4-methyl-6-tert butyl phenyl] terephthalate, triglycol two [3-(the 3-tertiary butyl-5-methyl-4-hydroxy phenyl) propionic ester] and 1,6-pinakon-two [3-(3,5-two-tert-butyl-hydroxy phenyl) propionic ester].
In some embodiments, said phenol-based anti-oxidants can be selected from 2,6-two-tertiary butyl-p-cresol, 4,4 '-methylene-bis (2,6-two-tert.-butyl phenol), 2,6-two-tertiary butyl-4-ethylphenol or their combination.
Comprise in the embodiment of combination of one or more phenol-based anti-oxidants and one or more amido inhibitors at said lubricating fluid; The ratio of phenol-based anti-oxidants and amido inhibitor can suitably be selected from the scope of broad, and phenol-based anti-oxidants (PBA) can be at least about 1 (PBA) with the weight ratio of amido inhibitor (ABA): 0.05 (ABA) is extremely up to 1 (PBA): 20 (ABA).In some embodiments, said ratio can be at least about 1 (PBA): 0.2 (ABA) is to 1 (PBA): 5 (ABA).
The illustrative embodiments that comprises the antioxidant combination of at least a amido inhibitor and at least a phenol-based anti-oxidants comprises: one or more are selected from down the component of group material: 2; 6-two-tertiary butyl-p-cresol, 4; 4 '-methylene-bis (2; 6-two-tertiary butyl-phenol) and 2,6-two-tertiary butyl-4-ethylphenol, one or more are selected from down the component of group material: p; P '-dioctyl (comprising straight chain and side chain) diphenylamine, p, p '-dinonyl (comprising straight chain and side chain) diphenylamine and N-phenyl-1-naphthylamine; And their combination.
In some embodiments, said lubricating fluid can comprise the combination of one or more following materials: 2, and 6-two-tertiary butyl-p-cresol and p, p '-dioctyl (comprising straight chain and side chain) diphenylamine; 2,6-two-tertiary butyl-p-cresol and p, p '-dinonyl (comprising straight chain and side chain) diphenylamine; 2,6-two-tertiary butyl-p-cresol and N-phenyl-1-naphthylamine ,-4,4 '-methylene-bis (2,6-two-tert.-butyl phenol) and p, p '-dioctyl (comprising straight chain and side chain) diphenylamine; 4,4 '-methylene-bis (2,6-two-tert.-butyl phenol) and p, p '-dinonyl (comprising straight chain and side chain) diphenylamine; 4,4 '-methylene-bis (2,6-two-tert.-butyl phenol) and N-phenyl-1-naphthylamine; 2,6-two-tertiary butyl-4-ethylphenol and p, p '-dioctyl (comprising straight chain and side chain) diphenylamine; 2,6-two-tertiary butyl-4-ethylphenol and p, p '-dinonyl (comprising straight chain and side chain) diphenylamine; With 2,6-two-tertiary butyl-4-ethylphenol and N-phenyl-1-naphthylamine.
In some embodiments, said lubricating fluid can comprise the combination of one or more following materials: 4, and 4 '-methylene-bis (2,6-two-tert.-butyl phenol) and p, p '-dioctyl (comprising straight chain and side chain) diphenylamine; 4,4 '-methylene-bis (2,6-two-tert.-butyl phenol) and p, p '-dinonyl (comprising straight chain and side chain) diphenylamine and 4,4 '-methylene-bis (2,6-two-tert.-butyl phenol) and N-phenyl-1-naphthylamine.
The inhibitor total amount that exists in the lubricating fluid can have a great difference.Usually, the inhibitor total amount of use can prevent, suppress or fully suppress the deterioration by oxidation of said lubricating fluid component effectively.Gross weight in said lubricating fluid is a benchmark, and the scope of significant quantity is 0.01-5.0%, 0.1-5.0%, 0.05-5% or 0.1-3%.Said inhibitor can be bigger amount add.But bigger amount can not further be improved the suitability of the lubricating fluid that is used for a motor usually, possibly be uneconomic therefore.Said inhibitor also can be less amount add, as long as said amount can prevent, suppress or fully suppress the deterioration by oxidation of lubricating fluid component effectively.
Said lubricating fluid also can randomly comprise the additive that is used to improve abrasion resistance, high-pressure metal contact and frictional property, i.e. antiwear additive.Such additive can comprise; For example, the combination of the salt of dialkyl dithiophosphate, alkyl and aryl bisulphide and polysulphide, dithiocarbamate, alkylphosphonic acid carboxylic acid, molybdenum mixture, neutral phosphate and two kinds or more kinds of these additives.In some embodiments, antiwear additive can comprise for example zinc dialkyl dithiophosphate, molybdenumdisulphide, liquid phosphoric acid amine, for example acid phosphoric acid ester such as phosphoric acid C 11-C 14The amine salt of branched alkyl ester, mono phosphoric acid ester polyhexamethylene, di(2-ethylhexyl)phosphate polyhexamethylene, di(2-ethylhexyl)phosphate butyl ester, di(2-ethylhexyl)phosphate octyl group ester or di(2-ethylhexyl)phosphate tolyl ester, the amine salt of acid phosphoric acid ester such as di(2-ethylhexyl)phosphate butyl ester or di(2-ethylhexyl)phosphate isopropyl esters and neutral aryl phosphate ester.Exemplary liquid phosphoric acid amine can be available from Sheba Ge Jie company (Ciba Geigy).
Suitable neutral phosphate can comprise (O=) P (OR) of all phosphotriesters (being also referred to as phosphotriester) 3, wherein substituting group " R " is represented identical or different alkyl.Said alkyl has 1-30 usually, or 4-18 carbon atom, can be or comprises straight or branched alkyl, naphthenic base and aryl moiety.In addition, said alkyl can have one or more halogenic substituents.When having halogen, halogenic substituent can be for example fluorine, chlorine or bromine substituting group.
Usually, each substituting group, R can represent independently: a.) straight or branched C 1-C 18-alkyl can be randomly by one or more halogen atoms, C 3-C 10-naphthenic base or C 6-C 14-aryl replaces, and wherein said cyclic group can have 1-3 again and be selected from halogen atom, C 1-C 10-alkyl, C 3-C 10-naphthenic base and C 6-C 14The substituting group of-aryl; B.) C 3-C 10-naphthenic base, it can be monocycle or multi-ring alkyl, and can be randomly by one or more halogen atoms, C 1-C 10-alkyl, C 3-C 10-naphthenic base and C 6-C 14-aryl replaces, and wherein each alkyl can be again by one or more halogen atoms, C 3-C 10-naphthenic base or C 6-C 14-aryl replaces, and each cyclic group can have 1-3 again and be selected from halogen atom, C 1-C 10-alkyl, C 3-C 10-naphthenic base and C 6-C 14The substituting group of-aryl; C.) C 6-C 14-aryl, it can be monocycle or polyaromatic, like phenyl, naphthyl and anthryl, can be randomly by one or more halogen atoms, C 1-C 10-alkyl, C 3-C 10-(two) naphthenic base or C 6-C 14-aryl replaces, and wherein each alkyl can be again by one or more halogen atoms, C 3-C 10-naphthenic base or C 6-C 14-aryl replaces, and each cyclic group can have 1-3 again and be selected from halogen atom, C 1-C 10-alkyl, C 3-C 10-naphthenic base or C 6-C 14The substituting group of-aryl.
The example of phosphotriester can comprise tricresyl phosphate butyl (comprising straight chain and side chain) ester; Tricresyl phosphate amyl group (comprising straight chain and side chain) ester; Tricresyl phosphate hexyl (comprising straight chain and side chain) ester; Tricresyl phosphate heptyl (comprising straight chain and side chain) ester; Tricresyl phosphate octyl group (comprising straight chain and side chain) ester; Tricresyl phosphate nonyl (comprising straight chain and side chain) ester; Tricresyl phosphate decyl (comprising straight chain and side chain) ester; Tricresyl phosphate-undecyl (comprising straight chain and side chain) ester; Tricresyl phosphate-dodecyl (comprising straight chain and side chain) ester; Tricresyl phosphate-tridecyl (comprising straight chain and side chain) ester; Tricresyl phosphate-tetradecyl (comprising straight chain and side chain) ester; Tricresyl phosphate-pentadecyl (comprising straight chain and side chain) ester; Tricresyl phosphate-hexadecyl (comprising straight chain and side chain) ester; Tricresyl phosphate-heptadecyl (comprising straight chain and side chain) ester; Tricresyl phosphate-octadecyl (comprising straight chain and side chain) ester; Tricresyl phosphate (the straight or branched C that similarly has identical or different alkyl 4-C 18-alkyl) ester; Tricresyl phosphate cyclopropyl ester, tricresyl phosphate cyclobutyl ester, tricresyl phosphate cyclopentyl ester, tricresyl phosphate cyclohexyl ester, tricresyl phosphate suberyl ester, tricresyl phosphate ring octyl group ester and similar tricresyl phosphate (C 3-C 8-naphthenic base) ester, and one of them or two R groups are represented C 4-C 18-alkyl and other R group are represented C 3-C 8The corresponding SULPHOSUCCINIC ACID ESTER of-naphthenic base; Phosphate, lindol, tricresyl phosphate (xylyl) ester, tricresyl phosphate base diphenyl, di(2-ethylhexyl)phosphate tolyl diphenyl, tricresyl phosphate (tribromo phenyl) ester, tricresyl phosphate (dibromo phenyl) ester, tricresyl phosphate (2; 4-two-tert-butyl-phenyl) ester, tricresyl phosphate (nonyl phenyl) ester and similar triaryl phosphate, and one of them or two R groups are represented C 4-C 18-alkyl and other R group are represented the corresponding SULPHOSUCCINIC ACID ESTER of aryl, and wherein a R group is represented C 4-C 18-alkyl, the 2nd R group is represented C 3-C 8-naphthenic base and the 3rd R group are represented the corresponding SULPHOSUCCINIC ACID ESTER of aryl.
In some embodiments, said neutral phosphate can be a triaryl phosphate.In some embodiments, said neutral phosphate can be tricresyl phosphate-C 6-C 14-aryl ester, wherein each aryl randomly has individual halogen atom and the C of being selected from of 1-3 1-C 12The identical or different substituting group of-alkyl.In some embodiments, said neutral phosphate can be tricresyl phosphate-C 6-C 14-aryl ester, wherein each aryl randomly has 1-3 identical or different C 1-C 12Alkyl.In some embodiments, said neutral phosphate can be tricresyl phosphate-C6-C10-aryl ester, and wherein each aryl randomly has 1-3 identical or different C1-C8 alkyl.In some embodiments, said neutral phosphate can be tricresyl phosphate-C6-C10-aryl ester, and wherein each aryl has at least one C1-C8 alkyl.In some embodiments, said neutral phosphate can be a phosphate, and wherein each phenyl ring randomly has individual halogen atom and the C of being selected from of 1-3 1-C 12The identical or different substituting group of-alkyl.In some embodiments, said neutral phosphate can be a phosphate, and wherein each phenyl ring randomly has 1-3 identical or different C 1-C 12-alkyl.In some embodiments, said neutral phosphate can be a phosphate, and wherein each phenyl ring randomly has 1-3 identical or different C 1-C 8-alkyl.In some embodiments, said neutral phosphate can be a phosphate, and wherein each aryl randomly has at least one C1-C8 alkyl.In some embodiments, said neutral phosphate can be a phosphate, and wherein each phenyl randomly has at least one C3-C6 alkyl.In some embodiments, said neutral phosphate can be a phosphate, and wherein each phenyl randomly has at least one straight or branched butyl.
Lubricating fluid can comprise single combination of planting neutral phosphate or two kinds or more kinds of neutral phosphates.In addition, said lubricating fluid can comprise single combination of planting antiwear additive or two kinds or more kinds of similar or dissimilar antiwear additive.The antiwear additive total amount that exists in the lubricating fluid can have a great difference.Usually, the antiwear additive total amount of use can prevent the direct contact of working-surface, for example metal and metallic contact effectively.Gross weight in said lubricating fluid is a benchmark, and the scope of significant quantity is generally 0.01-5 weight %, 0.05-5 weight %, 0.1-5 weight % or 0.1-3 weight %.Said antiwear additive can be bigger amount add.But bigger amount can not further be improved the suitability of the lubricating fluid that is used for a motor usually, possibly be uneconomic therefore.
Lubricating fluid also can randomly comprise corrosion inhibitor.Suitable corrosion inhibitor (metal brightener, metal passivator, rust-preventive agent) can comprise inhibition, prevents or eliminate the corrosive compound on said axle motor operations surface, like sulphonate, alkylamine (hydrocarbyl amine), carboxylic acid derivative, tetrahydroglyoxaline, thiophene (two) azoles, (benzo) triazole and phosphamide.
In some embodiments, said lubricating fluid can comprise sulfuric ester or its salt that at least a natural or synthetic has at least 9 carbon atom alkyl.In some embodiments, said lubricating fluid can comprise the salt that at least a natural or synthetic has the sulfuric ester of at least 9 carbon atom alkyl.
In some embodiments, said lubricating fluid can comprise at least a calcium mahogany sulfonate, high alkalinity calcium mahogany sulfonate, alkyl benzene calcium sulfonate, high alkalinity alkyl benzene calcium sulfonate, alkyl benzene sulphonate(ABS) barium, high alkalinity alkyl benzene sulphonate(ABS) barium, magnesium alkylbenzene sulfonate, high alkalinity magnesium alkylbenzene sulfonate, sodium alkyl benzene sulfonate, high alkalinity sodium alkyl benzene sulfonate, alkyl naphthalene sulfonic acid calcium, high alkalinity alkyl naphthalene sulfonic acid calcium or similar metal sulfonate; Phenol calcium, high alkalinity phenol calcium, phenol barium, high alkalinity phenol barium or similar phenol metal-salt; SAP 002, overbased calcium salicylate or similar salicylic acid metal salt; Phosphonic acids calcium, high alkalinity phosphonic acids calcium, phosphonic acids barium, high alkalinity phosphonic acids barium or similar phosphonic acid metal salt; Overbased calcium carboxylate etc.In some embodiments, said lubricating fluid can comprise at least a calcium mahogany sulfonate, alkyl benzene calcium sulfonate, alkyl benzene sulphonate(ABS) barium, magnesium alkylbenzene sulfonate, sodium alkyl benzene sulfonate, alkyl benzene sulphonate(ABS) zinc, alkyl naphthalene sulfonic acid calcium or similar metal organic sulfonate.
In some embodiments; Said lubricating fluid can comprise the substituted amine of at least a hydrocarbon, like ethamine, diethylamine, triethylamine, have one, two or three primary amine, tertiary amine or the secondary amine that have the alkyl substituent of 1-20 carbon atom independently of one another, phenylenediamine, hexahydroaniline, morpholine, quadrol, Triethylenetetramine (TETA), tetren etc.In some embodiments, said lubricating fluid can comprise that at least a hydrocarbon replaces the salt of amine.In some embodiments, said lubricating fluid can comprise at least a rosin Amine D, N-oleic acid base sarkosine and similar amine.
In some embodiments, said lubricating fluid can comprise at least a carboxylic acid or carboxylate salt with alkyl of at least 7 carbon atoms.In some embodiments, said carboxylic acid or its salt can comprise the alkyl with 10-22 carbon atom or 14-18 carbon atom.Object lesson just comprising-dodecylic acid, just-tridecanoic acid, just-tetradecanoic acid, just-pentadecylic acid, just-hexadecanoic acid, just-margaric acid, just-octadecanoic acid, just-nondecylic acid, just-arachic acid, just-docosanoic acid, oleic acid etc.In some embodiments, just can use-tetradecanoic acid, just-hexadecanoic acid and just-octadecanoic acid.In some embodiments, said lubricating fluid can comprise at least a dodecenyl succinic Succinic Acid half ester, vaccenic acid base Succinic anhydried, dodecylene succinamide or similar alkyl or alkenyl butanedioic acid derivative; Sorbitan monooleate, XU 61518.10, pentaerythritol monooleate or similar polyol partial esters.
In some embodiments, said carboxylic acid derivative can be based on the compound of gallic acid.Example based on the compound of gallic acid comprises the compound with 7-30 carbon atom or 8-20 carbon atom.Concrete example comprises gallic acid; Methyl gallate; Gallic acid ethyl ester 10; Gallic acid propyl group (comprising straight chain and side chain) ester; Gallic acid butyl (comprising straight chain and side chain) ester; Gallic acid amyl group (comprising straight chain and side chain) ester; Gallic acid hexyl (comprising straight chain and side chain) ester; Gallic acid heptyl (comprising straight chain and side chain) ester; Gallic acid octyl group (comprising straight chain and side chain) ester; Gallic acid nonyl (comprising straight chain and side chain) ester; Gallic acid decyl (comprising straight chain and side chain) ester; Gallic acid undecyl (comprising straight chain and side chain) ester; Gallic acid dodecyl (comprising straight chain and side chain) ester; Gallic acid tridecyl (comprising straight chain and side chain) ester; Gallic acid tetradecyl (comprising straight chain and side chain) ester; Gallic acid pentadecyl (comprising straight chain and side chain) ester; Gallic acid hexadecyl (comprising straight chain and side chain) ester; Gallic acid heptadecyl (comprising straight chain and side chain) ester; Gallic acid octadecyl (comprising straight chain and side chain) ester; Gallic acid nonadecyl (comprising straight chain and side chain) ester; Gallic acid eicosyl (comprising straight chain and side chain) ester; The straight or branched C of gallic acid docosyl (comprising straight chain and side chain) ester and similar gallic acid 1-C 22-alkyl ester; C with gallic acid cyclohexyl ester, gallic acid cyclopentyl ester and similar gallic acid 4-C 8-cycloalkyl ester.In some embodiments, can use gallic acid (just-propyl group) ester, gallic acid (just-octyl group) ester, gallic acid (just-dodecyl) ester and the similar straight or branched C of gallic acid 3-C 12-alkyl ester.
In some embodiments, said lubricating fluid can comprise at least a imidazoles, thiophene (two) azoles or (benzo) triazolyl compound as corrosion inhibitor.Basically, any inhibition corrosive imidazoles, thiophene (two) azoles or (benzo) triazolyl compound all are suitable.In some embodiments, said corrosion inhibitor can be the triazolyl compound of sulfur-bearing not in the molecule.In some embodiments, said triazolyl compound can be the benzotriazole that for example has 6-60 carbon atom or 6-40 carbon atom.Exemplary example comprises benzotriazole, 5-methyl isophthalic acid H-benzo-triazole, 1-dioctyl amino methyl benzotriazole, 1-dioctyl amino methyl-5-Methylbenzotriazole, 2-(5 '-methyl-2 '-phenylor) benzotriazole, 2-[2 '-hydroxyl-3 '; 5 '-two (a; The a-dimethyl benzyl) phenyl]-2H-benzotriazole, 2-(3 '; 5 '-two-tertiary butyl-2 '-phenylor) benzotriazole, 2-(3 '-tertiary butyl-5 '-methyl-2 '-phenylor)-5-chlorobenzotriazole, 2-(3; 5 '-two-tertiary butyl-2 '-phenylor)-5-chlorobenzotriazole, 2-(3 '; 5 '-two-tert-pentyl-2 '-phenylor) benzotriazole, 2-(5 '-tertiary butyl-2 '-phenylor) benzotriazole, 2-(2-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl) benzotriazole, 2-[2 '-hydroxyl-3 '-(3 "; 4 "-5 "-5 '-aminomethyl phenyl, 6 " tetrahydrochysene phthalide methyl)] Phenyltriazole etc.At some embodiments, said lubricating fluid can comprise benzotriazole and/or 5-methyl isophthalic acid H-benzotriazole.
Usually, lubricating fluid can comprise single combination of planting corrosion inhibitor or two kinds or more kinds of same-type or dissimilar corrosion inhibitor.The corrosion inhibitor total amount that exists in the lubricating fluid can have a great difference.Usually, the usage quantity of said corrosion inhibitor can effectively prevent, suppress or fully suppress the corrosion of working-surface.Gross weight in said lubricating fluid is a benchmark, and the scope of significant quantity is 0.01-5.0 weight %, 0.05-5% or 0.1-3 weight %.Said corrosion inhibitor can be bigger amount add.But bigger amount can not further be improved the suitability of the lubricating fluid that is used for a motor usually, possibly be uneconomic therefore.Said corrosion inhibitor also can be less amount add, as long as said amount can prevent, suppress or fully suppress the corrosion on said axle motor operations surface effectively.
Disclosed lubricating fluid also can randomly comprise one or more viscosity index modifiers.Suitable viscosity index improver (viscosity modifier) can comprise all compounds that can the viscosity of increase be provided under comparatively high temps and the minimal viscosity contribution is provided at a lower temperature, for example polymeric compounds.The example of viscosity index improver comprises polyalkyl methacrylate, polyoxyethylene alkylphenyl ethene, polybutylenes, ethylene-propylene copolymer, vinylbenzene-diene copolymers, phenylethylene-maleic anhydride ester copolymer and similar olefin copolymer.Usually, lubricating fluid can comprise single combination of planting viscosity index improver or two kinds or more kinds of same-type or dissimilar viscosity index improver.
The viscosity index improver total amount that exists in the lubricating fluid can have a great difference.Usually, the usage quantity of viscosity index improver should provide the viscosity of increase effectively under higher temperature, and minimum viscosity contribution is provided at low temperatures.Gross weight in said lubricating fluid is a benchmark, and the scope of significant quantity is 0.01-5.0 weight %, 0.05-5 weight % or 0.1-3 weight %.Said viscosity index improver can be bigger amount add.But bigger amount can not further be improved the suitability of the lubricating fluid that is used for a motor usually, possibly be uneconomic therefore.Viscosity index improver also can be less amount add, as long as said amount can provide the viscosity of increase effectively under higher temperature, and provide minimum viscosity contribution to get final product at low temperatures.
Disclosed lubricating fluid also can randomly comprise pour point reducer.Suitable pour point reducer (cold flow improver, wax crystalls improving agent) can comprise all compounds of the cold flow properties that can improve said lubricating fluid, for example polymeric compounds.The example of suitable pour point reducer comprises condenses and polyalkyl methacrylate, polyoxyethylene alkylphenyl ethene, polybutylenes of condenses, clorafin and the phenol of clorafin and alkylnaphthalene etc., and they also can be used as above-mentioned viscosity index improver.Usually, lubricating fluid can comprise single combination of planting pour point reducer or two kinds or more kinds of same-type or dissimilar pour point reducer.
The pour point reducer total amount that exists in the lubricating fluid can have a great difference.Usually, the usage quantity of pour point reducer should be improved the cold flow properties of lubricating fluid effectively.Gross weight in said lubricating fluid is a benchmark, and the scope of significant quantity is 0.01-5.0 weight %, 0.05-5 weight % or 0.1-3 weight %.Said pour point reducer can be bigger amount add.But bigger amount can not further be improved the suitability of the lubricating fluid that is used for a motor usually, possibly be uneconomic therefore.Pour point reducer also can be less amount add, as long as said amount can provide required cold flow properties effectively.
Disclosed lubricating fluid also can randomly comprise skimmer.Suitable skimmer can comprise that the foam that can effectively suppress, prevent or eliminate said lubricating fluid forms all compounds of trend.The example of suitable skimmer comprises ZGK 5, PFPE, polyacrylic ester and similar organic polymer.Usually, lubricating fluid can comprise single combination of planting skimmer or two kinds or more kinds of same-type or dissimilar skimmer.
The skimmer total amount that exists in the lubricating fluid can have a great difference.Usually, the usage quantity of skimmer should fully suppress, prevents or eliminate the foam formation trend of said lubricating fluid effectively.Gross weight in said lubricating fluid is a benchmark, and the scope of significant quantity is 0.01-5 weight %, 0.05-5 weight % or 0.1-3 weight %.Said skimmer can be bigger amount add.But bigger amount can not further be improved the suitability of the lubricating fluid that is used for a motor usually, possibly be uneconomic therefore.Said skimmer also can be less amount add, as long as said amount can fully suppress, prevents or eliminate the foam formation trend of said lubricating fluid effectively.
Said lubricating fluid can have required viscosity arbitrarily usually.In some embodiments, said lubricating fluid is 15cp-80cp 0 ℃ viscosity.In some embodiments, said lubricating fluid is 25cp-70cp 0 ℃ viscosity.In some embodiments, said lubricating fluid is 25cp-60cp 0 ℃ viscosity.
Embodiment
Material
Said material is promptly pressed sample except as otherwise noted and is used from following supplier.Use 1 part of 3-methyl isophthalic acid, and 5-pentanediol and 2 parts of undecanoic acids (the sigma aldrich company of St. Louis, the Missouri State (Sigma Aldrich, St.Louis, MO)) and synthetic two-just-undecanoic acid-3-methyl isophthalic acid, the 5-pentadiol ester; Use currently known methods washing and purified mixture.Octyl groupization/butylated diphenylamine IRGANOX
Figure BPA00001503218200211
L 57; Succinic Acid half ester IRGACOR
Figure BPA00001503218200212
L 12; And tolytriazole (tolutriazole) derivative I RGAMET 39 is available from (the Ciba Holding of Si Ba parent corporation; AG) (Switzerland, Basel).Commodity are called the tetraphenyl resorcinol diphosphate of Reofos-RDP available from the Mu Te company of speeding (Chemtura Corporation) (west, Indiana State Lafayette (West Lafayette, IN)).Butylation triaryl phosphate additive SYN-O-AD
Figure BPA00001503218200215
8478 is available from ICL Industrial products company (ICL IndustrialProducts) (St. Louis, the Missouri State).STAT-SAFE
Figure BPA00001503218200216
2500 (combinations of kerosene, o-Xylol, Witco 1298 Soft Acid and solvent naphtha) available from Cheshire, UK because of the special chemical company of promise Parker.EXPINN
Figure BPA00001503218200217
10 (combinations of heptane and Witco 1298 Soft Acid) available from Cheshire, UK because of the special chemical company of promise Parker.
Comparative composition 1 (CC1) comprises two-n-undecane acid-3-methyl isophthalic acid, 5-pentadiol ester (98.4 weight %), IRGANOX
Figure BPA00001503218200218
L57 (1.0 weight %), SYN-O-AD
Figure BPA00001503218200219
8478 (0.5 weight %), IRGACOR
Figure BPA000015032182002110
L12 (0.05 weight %) and IRGAMET
Figure BPA000015032182002111
39 (0.05 weight %).Compsn 1; (C1) and 2; (C2) comprise the STAT-SAFE 2500 of component CC1 and 100ppm; (C1) and the STAT-SAFE of 300ppm
Figure BPA000015032182002113
2500; (C2).
Comparative composition 2 (CC2) comprises two-pelargonic acid-3-methyl isophthalic acid, 5-pentadiol ester (98.4 weight %), IRGANOX
Figure BPA000015032182002114
L57 (1.0 weight %), Reofos-RDP (0.5 weight %), IRGACOR
Figure BPA000015032182002116
L12 (0.05 weight %) and IRGAMET
Figure BPA000015032182002117
39 (0.05 weight %).Composition 3 (C3), 4 (C4) and 5 (C5), including component CC2 and 100ppm of STAT-SAFE
Figure BPA000015032182002118
2500 (C3), 500ppm of STAT-SAFE
Figure BPA000015032182002119
2500 (C4) and 500ppm of EXPINN 10.
Embodiment 1
Measure sample CC1 in 30 ℃-100 ℃ TR, C1, C2, CC2, C3, the electric conductivity of C4 and C5.Fig. 4 illustrates CC1, and the electric conductivity of C1 and C2 is with respect to the relation of temperature; Fig. 5 illustrates CC2, C3, and the electric conductivity of C4 and C5 is with respect to the relation of temperature.
Embodiment 2
The evaporation of CC1 and C2 in monitoring 0-95 hour under 150 ℃ of conditions.The percentage ratio and the time relation of surplus oil are shown in Fig. 6.As shown in Figure 6, the lubricating oil C2 that comprises conduction inductor disclosed by the invention conducts electricity the same oil phase ratio of inductor with not containing, and shows that vaporator rate does not have significant difference.
Disclose like this to have and comprised and conduct electricity the embodiment of hydrokinetics disk drive axle motor of waterpower supporting member of lubricant of inductor.It will be appreciated by those skilled in the art that content disclosed by the invention can adopt other embodiment except that above-mentioned disclosing to implement.Disclosed embodiment is for exemplary and non-limiting purpose, and content disclosed by the invention only receives the restriction of appended claims.

Claims (20)

1. axle motor, it comprises:
Stationary parts;
Turning unit, said turning unit can rotate with respect to stationary parts; With
Waterpower supporting member, said waterpower supporting member and said stationary parts and turning unit interconnect and have the working-surface of being separated by lubricating fluid, and wherein said lubricating fluid comprises:
A) viscosity index is at least 110 synthetic ester base underflow body;
B) gross weight in said lubricating fluid is a benchmark, at least a conduction inductor of 10-5000 ppm by weight;
C) gross weight in said lubricating fluid is a benchmark, at least a inhibitor of 0.01-5 weight %; With
D) gross weight in said lubricating fluid is a benchmark, at least a antiwear additive of 0.01-5 weight %.
2. axle motor as claimed in claim 1 is characterized in that said synthetic ester base underflow body comprises:
The compound of formula (I)
Figure FPA00001503218100011
R wherein 1And R 2Identical or different, represent straight chain C separately 3-C 17-alkyl, it randomly has and is connected the C on the secondary carbon(atom) in the chain 1-C 3-alkyl; Z is a straight chain C 3-C 10-alkylidene group, it randomly has and is connected the C on the carbon atom in the chain 1-C 3-alkyl;
The compound of formula Ia
R wherein 1And R 2Identical or different, represent straight chain C separately 3-C 17-alkyl, it randomly has and is connected the C on the secondary carbon(atom) in the chain 1-C 3-alkyl; Z is a straight chain C 3-C 10-alkylidene group, it randomly has and is connected the C on the carbon atom in the chain 1-C 3-alkyl;
Or their combination.
3. axle motor as claimed in claim 1 is characterized in that said at least a conduction inductor is selected from:
A.) mixture of dialkyl group Whitfield's ointment chromium in the multipolymer of lauryl methacrylate(LMA) and ethylene methacrylic yl pyridines and didecyl sulfo-succinic acid calcium;
B.) N-tallow-1, the compsn of the polycondensation product of 3-diaminopropanes and Epicholorohydrin (3) (for example in aromatic solvent);
C.) compsn of 1-decene polysulfones and nitrous acid dicocoalkyl Dimethyl Ammonium in the toluene;
D.) colloidal solution of alkylsalicylate/ester, sulphonate/ester, the inferior acid amides of amber and other polar additive;
E.) C in magnesium oleate, the calcium salt that contains stearic nitrated lubricating oil, the toluene 17-C 20Compsn, chromium stearate, long chain acid chromic salts, oleic acid chromium, linolic acid chromium, cobalt naphthenate, copper naphthenate, nickel naphthenate, DIETHANOL AMINE, 2-picoline, pyridine, 3-picoline, the 2-amino-5-nitropyridine and 2 of-artificial fat acid chromic salts, 6-dinitrobenzene-3-chloropyridine;
F.) octadecyl anthranilic acid;
G.) electric polyaniline derivative that mixes with long chain organic acid or hydrocarbon side chain;
H.) contain the metals ion of soccerballene; And
I.) metals ion.
4. axle motor as claimed in claim 1 is characterized in that said conduction inductor comprises polymeric compounds.
5. axle motor as claimed in claim 4 is characterized in that said polymeric compounds comprises polyaniline.
6. axle motor as claimed in claim 5 is characterized in that, said polymeric compounds is represented by formula 1:
Figure FPA00001503218100021
0＜x/y＜1 wherein;
R aAnd R bBe hydrogen or alkyl independently of one another; And
R cBe hydrogen, alkyl, halogen atom or be connected the alkyl on the phenyl ring through oxygen or sulphur.
7. axle motor as claimed in claim 1 is characterized in that said conduction inductor comprises R a-SO 3H, wherein R aBe hydrogen or alkyl.
8. axle motor as claimed in claim 7 is characterized in that said conduction inductor is selected from down the group material: its phenyl ring randomly has one, two or three identical or different straight or branched C 6-C 20The Phenylsulfonic acid of-alkyl; Straight or branched heptyl-Phenylsulfonic acid; Straight or branched octyl group-Phenylsulfonic acid; Straight or branched nonyl-Phenylsulfonic acid; Straight or branched decyl-Phenylsulfonic acid; Straight or branched undecyl-Phenylsulfonic acid; Straight or branched dodecyl-Phenylsulfonic acid; Straight or branched tridecyl-Phenylsulfonic acid; Straight or branched tetradecyl-Phenylsulfonic acid; Straight or branched pentadecyl-Phenylsulfonic acid; Straight or branched hexadecyl-Phenylsulfonic acid; Straight or branched heptadecyl-Phenylsulfonic acid; Straight or branched octadecyl-Phenylsulfonic acid; Straight or branched nonadecyl-Phenylsulfonic acid; Straight or branched eicosyl-Phenylsulfonic acid; Straight or branched list hexyl or dihexyl-naphthyl sulfonic acid; Straight or branched list heptyl or diheptyl-naphthyl sulfonic acid; Straight or branched list octyl group or dioctyl-naphthyl sulfonic acid; Straight or branched list nonyl or dinonyl-naphthyl sulfonic acid; Straight or branched list decyl or didecyl-naphthyl sulfonic acid; Straight or branched list undecyl or two undecyl-naphthyl sulfonic acid; Straight or branched list dodecyl or two dodecyl-naphthyl sulfonic acid; Straight or branched list tridecyl or double tridecyl-naphthyl sulfonic acid; Straight or branched list tetradecyl or two tetradecyl-naphthyl sulfonic acid; Straight or branched list pentadecyl or two pentadecyl-naphthyl sulfonic acid; Straight or branched list hexadecyl or double hexadecyl-naphthyl sulfonic acid; Straight or branched list heptadecyl or two heptadecyl-naphthyl sulfonic acid; Straight or branched list octadecyl or two octadecyl-naphthyl sulfonic acid; Straight or branched list nonadecyl or two nonadecyl-naphthyl sulfonic acid; With straight or branched list eicosyl or two eicosyl-naphthyl sulfonic acid.
9. axle motor as claimed in claim 1 is characterized in that said lubricating fluid is 15cp-80cp 0 ℃ viscosity.
10. axle motor as claimed in claim 1 is characterized in that said lubricating fluid comprises at least a amido inhibitor.
11. axle motor as claimed in claim 1 is characterized in that said lubricating fluid comprises at least a amido inhibitor and at least a phenol-based anti-oxidants.
12. axle motor as claimed in claim 1 is characterized in that, is benchmark in fluidic gross weight at the bottom of the said synthetic ester base, said lubricating fluid comprises at least a viscosity index modifiers of 0.01 weight %-5 weight %.
13. axle motor as claimed in claim 1 is characterized in that, is benchmark in fluidic gross weight at the bottom of the said synthetic ester base, said lubricating fluid comprises at least a pour point reducer of 0.01 weight %-5 weight %.
14. axle motor as claimed in claim 1 is characterized in that, is benchmark in fluidic gross weight at the bottom of the said synthetic ester base, said lubricating fluid comprises at least a skimmer of 0.01 weight %-5 weight %.
15. axle motor as claimed in claim 1 is characterized in that said lubricating fluid also comprises polyalphaolefin substrate fluid.
16. axle motor as claimed in claim 1 is characterized in that said synthetic ester base underflow body comprises: the 3-methyl isophthalic acid; 5-pentanediol two (just-capronate), 3-methyl isophthalic acid; 5-pentanediol two (just-heptanoate), 3-methyl isophthalic acid, 5-pentanediol two (just-octanoate), 3-methyl isophthalic acid, 5-pentanediol two (just-pelargonic esternonate), 3-methyl isophthalic acid; 5-pentanediol two (just-decylate), 3-methyl isophthalic acid; 5-pentanediol two (just-undecane acid esters), 3-methyl isophthalic acid, 5-pentanediol two (just-dodecylate) and 3-methyl isophthalic acid, 5-pentanediol two (just-tridecanoate) or their combination.
17. an axle motor, it comprises:
Stationary parts;
Turning unit, said turning unit can rotate with respect to stationary parts; With
Waterpower supporting member, said waterpower supporting member and said stationary parts and turning unit interconnect and have the working-surface of being separated by lubricating fluid, and wherein said lubricating fluid comprises:
A) viscosity index is at least 110 synthetic ester base underflow body;
B) gross weight in said lubricating fluid is a benchmark, one or more aryl sulfonic acid conduction inductors of 10-5000 ppm by weight;
C) gross weight in said lubricating fluid is a benchmark, at least a phenolic antioxidant, amine inhibitor or phenol and the amine inhibitor of 0.1 weight %-5 weight %; With
D) gross weight in said lubricating fluid is a benchmark, at least a antiwear additive of 0.1 weight %-5 weight %.
18. axle motor as claimed in claim 17 is characterized in that said lubricating fluid comprises at least a aryl sulfonic acid of 50-1000ppm.
19. axle motor as claimed in claim 17 is characterized in that said at least a conduction inductor comprises Witco 1298 Soft Acid.
20. a lubricating fluid, it comprises:
A) viscosity index is at least 110 synthetic ester base underflow body;
B) gross weight in said lubricating fluid is a benchmark, one or more aryl sulfonic acid conduction inductors of 50-1000 ppm by weight;
C) gross weight in said lubricating fluid is a benchmark, at least a phenolic antioxidant, amine inhibitor or phenol and the amine inhibitor of 0.01 weight %-5 weight %; With
D) gross weight in said lubricating fluid is a benchmark, at least a antiwear additive of 0.01 weight %-5 weight %.
CN201080035139XA 2009-08-06 2010-08-06 Hydrodynamic disc drive spindle motors having hydro bearing with lubricant including conductivity inducing agent Pending CN102471721A (en)

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